Human respiratory bladder



FIG. 1 is a front elevational view of a human body respiratory bladder, showing our new design;

FIG. 2 is a rear elevational view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is an end elevational view of the right end thereof; and,

FIG. 6 is an end elevational view of the left end thereof. 

The ornamental design for a human respiratory bladder, as shown and described. 